Companies in the category 'Monitoring'
These are companies that provide open source tools and platforms for monitoring systems, applications, and infrastructure.
Open-source time series database & monitoring
VictoriaMetrics is the company behind the open-source time series database and monitoring solution of the same name. It provides high-performance, cost-effective, and scalable solutions for storing and querying time series data, offering both a single-node version and a cluster version, as well as a fully managed cloud offering and enterprise support.
Open-source monitoring for IT infrastructures
Icinga is an open-source monitoring system that helps monitor entire IT infrastructures, including hybrid and complex environments. It provides insights, notifications, visuals, and analytics, and integrates with various DevOps tools.
Network monitoring system
LibreNMS is an autodiscovering PHP/MySQL/SNMP based network monitoring system which includes support for a wide range of network hardware and operating systems.
Observability pipeline for monitoring as code.
Sensu Go is an open-source monitoring software that provides an observability solution for enterprises, automating monitoring workflows and offering deep visibility into infrastructure.
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Nagios Enterprises develops comprehensive IT infrastructure monitoring solutions that help organizations ensure the availability and performance of their critical IT systems. The company provides both open-source and commercial monitoring tools used by thousands of organizations worldwide.
Open source metrics and monitoring system.
Prometheus is an open-source monitoring and alerting toolkit originally built at SoundCloud and now maintained by the Cloud Native Computing Foundation. It provides powerful metrics collection, storage, and querying capabilities designed for reliability and scalability in cloud-native environments.
Open-source infrastructure monitoring
Netdata is a real-time infrastructure observability platform built around an open-source monitoring agent that collects per-second metrics from servers, containers, Kubernetes clusters, and applications. The platform uses a distributed edge-native architecture where each agent stores and analyzes data locally, enabling zero-configuration deployment with automatic dashboards and machine learning-based anomaly detection. Netdata Cloud provides a commercial SaaS and on-premises offering for centralized multi-node monitoring, while the core Netdata Agent remains free and open source under the GPLv3+ license.
Open-source synthetic monitoring platform
OpenStatus is an open-source synthetic monitoring platform that enables global monitoring of APIs and websites with real-time alerts and status pages. The platform provides latency monitoring across all continents, supports multiple monitoring types including API, DNS, SSL, and SMTP, and features OpenTelemetry integration for observability stack export.
Open source full-stack monitoring platform
Highlight is an open source, full-stack monitoring platform that provides session replay, error monitoring, logging, and distributed tracing for web applications. The company was acquired by LaunchDarkly in March 2025 and continues to operate as an open source project while becoming a first-party observability solution within LaunchDarkly's Guarded Releases strategy.
Network monitoring tool for HTTP requests.
Subtrace is a network monitoring tool that shows every HTTP request in production infrastructure without any code changes, described as 'Wireshark for Docker containers'. The company is part of Y Combinator's Winter 2025 batch and provides zero-code network tracing with features like time travel replay and p99 latency analysis.
Extracting insights from OpenTelemetry data
OllyGarden provides a platform for assessing and categorizing telemetry data. Its solutions work within the OpenTelemetry ecosystem.
Monitors website changes and provides alerts.
changedetection.io provides a service that monitors websites for changes and sends notifications when changes are detected. It is built on web technologies and serves both consumers and enterprises. The platform is designed to help users track changes on any website easily.
Application monitoring and error tracking.
Sentry provides an application monitoring platform that helps developers identify and fix issues in real-time, improving software quality and performance. Its core product is built on technologies like JavaScript and Python, and it primarily serves enterprises and SMBs.
Mobile app debugging and monitoring
Bitdrift provides real-time observability solutions for mobile applications, allowing developers to log everything, intelligently choose what to store, and instantly deploy changes to their entire fleet.

